To do this Sunday: astronaut Chris Hadfield's Reddit AMA

Chris Hadfield will be doing his first live Reddit AMA (ask me anything) Sunday, February 17 at 9:00 GMT/UTC (4 pm ET). The Canadian astronaut and current commander of the International Space Station will answer all your questions about life in space, and whatever else you care to ask. Recently, Hadfield spoke with fellow Canadian and space-lover William Shatner; their conversation is above.